Redispersible Polymer Powders for Tile Grout Mortar Additives
China Redispersible Polymer Powders for Tile Grout Mortar Additives, Find details about China Redispersible Polymer Powder, Vae from Redispersible Polymer Powders for Tile Grout Mortar Additives
Redispersible latex powder
Name Redispersible latex powder
Physical And Chemical Indicators
Chemical Name | Ethylene-vinyl acetate powder (VAE-RDP) |
Exterior | White free flowing powder |
Protective colloid | PVA |
Solid content,% | 97-99 |
Ash content,% | 10±2 |
Bulk density, g/l³ | 300-500 |
Particle size, μm | ≥80 |
Film forming temperature, ºC | 0-5 |
Specification
Model | characteristic |
YD1030 | Good adhesion, dispersion and film-forming properties |
YD1060 | Good adhesion, dispersion and film-forming properties; strong water resistance and flexibility |
YD1090 | Good adhesion, dispersion and film-forming properties; strong water resistance and flexibility |
Physical And Chemical Properties
(1)Redispersible latex powder is easily soluble in water and easy to form emulsion
(2) Redispersible latex powder has strong cohesive force and good tensile force
(3) Redispersible latex powder can improve the processability, flexibility and impermeability of materials
(4) Redispersible latex powder can improve the cohesion of the mortar, increase the concentration and anti-sagging
(5) Redispersible latex powder can improve the flexibility of the mortar and extend the open time
Production Process
Ethylene-vinyl acetate rubber powder (VAE-RDP) is made of vinyl acetate/ethylene copolymer emulsion (EVA emulsion) modified by adding water-soluble protective colloid (polyvinyl alcohol usually PVA) and spray-dried, using water as the medium Can be re-formed into an emulsion, a powder with redispersibility.
Application Performance
(1) Improve bond strength: latex powder forms a film at the interface
(2) Improve cohesion: film formation on the pore wall and film formation at microcracks
(3) Improve the airtightness and waterproofness of the mortar: the capillary pore wall forms a film, the microcracks form a film, and the latex powder film is waterproof
(4) Improve the flexibility and deformability of the mortar: latex powder has a low elastic modulus to change the rigidity of the cement base, and the latex powder bridges the mortar to supplement micro-cracks
(5) Improve the workability of mortar: the ball effect of latex powder particles, the air-entraining effect of latex powder emulsion
(6) Impact on the mechanical properties of mortar: reduce compressive strength and elastic modulus; appropriately improve the tensile strength of mortar; appropriately increase the flexural strength of cement mortar
(7) In the mortar system, the performance of the mortar varies with the content of latex powder. The amount of cement has a great impact on the performance of the mortar. Appropriately increasing the amount of cement can increase the elastic modulus and water resistance of the latex powder film, but with the amount of cement The increase of the powder will reduce the deformability of the latex powder film. ØWhen the content of latex powder is high, the material is flexible and has strong resistance to deformation. This type of material can be used as waterproof mortar, flexible tile glue, anti-cracking plastering mortar, etc.; ØWhen the content of latex powder is low, the material is rigid and the bonding strength is high. Due to the molecular bond of the rubber powder, it can have good bonding strength on smooth or flexible base surfaces. It is used in tile glue, benzene Board bonding mortar; In addition, latex powder can increase the cohesion of the material and improve the wear resistance. The typical application is self-leveling mortar.
(8) Mechanism of action: It combines latex powder (features: low modulus of elasticity, large deformability, swelling and softening in water, sealing material, low compressive strength, high bonding strength, etc.) and cement materials (features: elastic modulus The advantages of high weight, low deformability, hydraulic materials, porous materials, high compressive strength, low bonding strength, etc.) have significantly improved the bonding performance and durability of the material. Tile adhesive is one of the typical applications. Film formation process: With the loss of water in the mortar (evaporation, substrate absorption, cement hydration), the latex powder particles are close to each other ØWhen the temperature is higher than the minimum film-forming temperature, a polymer film is gradually formed and interlaced with the cement hydrate, the mortar gains cohesive strength and bond strength growth, and finally improves the cement stone structure. To make the film-forming process of latex powder irreversible, it is necessary to consume the hydrophilic protective colloid of the redispersible rubber powder-polyvinyl alcohol. In alkaline systems, polyvinyl alcohol will be saponified by alkali, and this reaction is irreversible; in non-alkaline systems, polyvinyl alcohol will have residues, which will affect water resistance. Therefore, the alkaline environment (high pH value and ionic strength in the pore solution) of cement-based materials is an important factor in the coalescence of latex particles.
Use
Redispersible latex powder is widely used in external wall insulation systems, tile adhesives, joint fillers, self-leveling mortar, repair mortar, putty, decorative mortar, diatom mud, waterproof slurry, wear-resistant floor and other fields.
Packaging, Storage And Transportation
It can be packed in paper-plastic composite bag lined with polyethylene plastic bag, cardboard drum or plastic coated, etc. The net weight of each piece is 25KG. During storage and transportation, it should be protected from sun and rain, fire and moisture
Hebei Yida Cellulose Co., Ltd. is a comprehensive enterprise integrating scientific research, production, sales, and after-sales. The factory is located in the Economic Development Zone of Jinzhou city, Hebei Province, China. It covers an area of 80,000 square meters, has fixed assets of more than 14 million us dollars, 268 employees, 12 new product research and development personnel, 28 senior technical personnel, 10 professional after-sales service personnel, and national elite sales With 8 teams, it is a modern professional enterprise focusing on R&D investment, technological innovation and after-sales service.
The company mainly produces hydroxypropyl methyl cellulose (HPMC), hydroxyethyl methyl cellulose (HEMC) and redispersible latex powder (VAE) and other products. The professional R&D team independently researches and develops high-stability and super-quality product formulas based on customer geographical differences, industry differences, product differences, and other factors. It is equipped with world-class production equipment, uses German horizontal kettle "one-step" production technology, and fully automated production lines. , Implement a complete and strict production testing process to ensure that the product quality tends to the international level. The annual output of Yida cellulose (HPMC, HEMC) can reach 15,000 tons, and the annual output of redispersible rubber powder can reach 16,000 tons. In 2010, it passed the ISO9001: 2008 quality system certification.
1.Provide High quality products.
2.Professional Technology Service Sale Team.
3.Convenient Transportation,near to Tianjin Port.
4.Short Delivery Time,within 7-10 days.
5.Long years Exporting Experience.
6.We put emphasis on quality more than everything.
1.Are you trading company or factory? 2. What is your MOQ? 3.Do you provide samples ? Is it free?
We are professional manufacturer for Our MOQ is 1000kgs Yes, we could offer the sample for free but
Hydroxy propyl Methyl Cellulose and (1 ton) or I M3. not including shipping fee. The cost depends
VAE Redispesible Powder for ten on sending method, plz contact us for more
more years. information if you want samples.
4.What about your delivery time? 5.What about the payment About 7-10 days according to the quantity. T/T , PAYPAL and WESTERN UNION
If you want more than 100 tons, time would are all OK,payment could be divided
be discussed cuz the goods may out of stock. considering the amount.
Thank U for understanding.
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